A polar low over The Labrador Sea: Interactions with topography and an upper‐level potential vorticity anomaly, and an observation by RADARSAT‐1 SAR
Bibliographic record
Abstract
Polar lows, high latitude marine mesoscale cyclones, are an enigmatic atmospheric phenomenon. With their small spatial scales, their short life times, and their tendency to develop in remote data sparse regions; they remain difficult to observe and to model. In this paper we use a variety of data sets to discuss the development of a polar low over the Labrador Sea that is of interest for several reasons. First, it developed out of the remnants of a synoptic‐scale cyclone that underwent a bifurcation due to an interaction with the high topography of southern Greenland. Second, the transformation of the resulting circulation into a polar low was aided by an interaction with an upper‐tropospheric potential vorticity anomaly. Finally, the event was observed by the Synthetic Aperture Radar on the RADARSAT‐1 satellite. The resulting image of the ocean's surface provides a new and provocative view of a most interesting weather system.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".